397079771 has 12 divisors (see below), whose sum is σ = 439618200. Its totient is φ = 358369440.

The previous prime is 397079743. The next prime is 397079789. The reversal of 397079771 is 177970793.

It is a happy number.

It is not a de Polignac number, because 397079771 - 2⁶ = 397079707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397079731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5015 + ... + 28623.

It is an arithmetic number, because the mean of its divisors is an integer number (36634850).

Almost surely, 2^397079771 is an apocalyptic number.

397079771 is a deficient number, since it is larger than the sum of its proper divisors (42538429).

397079771 is a wasteful number, since it uses less digits than its factorization.

397079771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23770 (or 23759 counting only the distinct ones).

The product of its (nonzero) digits is 583443, while the sum is 50.

The square root of 397079771 is about 19926.8605404866. The cubic root of 397079771 is about 735.0088826113.

The spelling of 397079771 in words is "three hundred ninety-seven million, seventy-nine thousand, seven hundred seventy-one".